Home / 31,410.69-47,123.77-15,623.20

Finding the Fourth Proportional to 31,410.69, 47,123.77 and 15,623.20

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Solution

The fourth proportional to 31,410.69, 47,123.77 and 15,623.20 is: 23,438.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,410.69 : 47,123.77 = 15,623.20 : x
  2. Step 2: Convert to fraction form
    31,410.69/47,123.77 = 15,623.20/x
  3. Step 3: Cross multiply
    31,410.69x = 47,123.77 × 15,623.20
  4. Step 4: Simplify right side
    31,410.69x = 736,224,005.35
  5. Step 5: Solve for x
    x = 736,224,005.35/31,410.69
  6. Step 6: Final answer
    x = 23,438.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.